Pablo Reyes pablorsk

Restore access to a unifi controller

When you are unable to login to the unifi controller or forgot admin password, you can restore access using SSH and manipulating mongodb directly.

Warning

Do not uninstall unifi controller - most of the data is not stored in mongodb. In case you thought a mongodb backup would be sufficient, you may have fucked up already, just like me. However I managed to write this "tutorial" for anyone to not run into the same trap.

Apparently this guide no longer works with recent unifi controller versions (starting nov/dec 2022). Since I no longer use unifi hardware in my home system, I can not update the guide myself. In case you've gotten here to recover your data, you're likely doomed. But giving it a try won't hurt anyway, therefore: good luck.

Implementing State Machine On Eloquent Model*

* Update (12.09.2017): I have improved the trait so that it can be used with objects other than Eloquent Models.

Some days ago I came across a task where I needed to implement managable state for an Eloquent model. This is a common task, actually there is a mathematical model called "Finite-state Machine". The concept is that the state machine (SM) "can be in exactly one of the finite number of states at any given time". Also changing from one state to another (called transition) depends on fulfilling the conditions defined by its configuration.

Practically this means you define each state that the SM can be in and the possible transitions. To define a transition you set the states on which the transition can be applied (initial conditions) and the only state in which the SM should be after the transition.

That's the theory, let's get to the work.

	[
	{
	"clabe": "002",
	"marca": "BANAMEX",
	"nombre": "Banco Nacional de México, S.A., Institución de Banca Múltiple, Grupo Financiero Banamex"
	},
	{
	"clabe": "006",
	"marca": "BANCOMEXT",
	"nombre": "Banco Nacional de Comercio Exterior, Sociedad Nacional de Crédito, Institución de Banca de Desarrollo"

	# based on the "patch deployment" strategy in this comment:
	# https://github.com/kubernetes/kubernetes/issues/13488#issuecomment-372532659
	# requires jq

	# $1 is a valid namespace
	function refresh-all-pods() {
	echo
	DEPLOYMENT_LIST=$(kubectl -n $1 get deployment -o json\|jq -r .items[].metadata.name)
	echo "Refreshing pods in all Deployments"
	for deployment_name in $DEPLOYMENT_LIST ; do

	# Apache configuration file
	# httpd.apache.org/docs/2.2/mod/quickreference.html

	# Note .htaccess files are an overhead, this logic should be in your Apache
	# config if possible: httpd.apache.org/docs/2.2/howto/htaccess.html

	# Techniques in here adapted from all over, including:
	# Kroc Camen: camendesign.com/.htaccess
	# perishablepress.com/press/2006/01/10/stupid-htaccess-tricks/
	# Sample .htaccess file of CMS MODx: modxcms.com

	version: 2

	jobs:
	test-job:
	machine: true
	steps:
	- checkout
	- run: sudo bash -c "$(curl -fsSL https://s3.amazonaws.com/tools.nanobox.io/bootstrap/ci.sh)"

	- run: nanobox evar add local CLOUDINARY_API_KEY=$CLOUDINARY_API_KEY

	wget https://github.com/wkhtmltopdf/wkhtmltopdf/releases/download/0.12.4/wkhtmltox-0.12.4_linux-generic-amd64.tar.xz
	tar xvf wkhtmltox-0.12.4_linux-generic-amd64.tar.xz
	mv wkhtmltox/bin/wkhtmlto* /usr/bin/
	ln -nfs /usr/bin/wkhtmltopdf /usr/local/bin/wkhtmltopdf

	FROM php:7.1-apache

	ADD . /var/www
	ADD ./site.conf /etc/apache2/sites-enabled/000-default.conf

	RUN apt-get update && apt-get install -y libmcrypt-dev mysql-client && \
	docker-php-ext-install mcrypt pdo_mysql opcache && \
	pecl install redis-3.1.2 && docker-php-ext-enable redis && \
	a2enmod rewrite

	#!/usr/bin/env bash

	composer validate

	### Previous version
	# php -r "\$lock = json_decode(file_get_contents('composer.lock'))->hash; \$json = md5(file_get_contents('composer.json')); if (\$lock !== \$json) { echo \"Lock file out of date\\n\"; exit(1); } echo \"Lock file up to date\\n\"; exit(0);"

	#!/bin/sh

	printf "Switching php to version 5.6 with symlinks.\n"
	printf "Press any key to continue...\n"

	read CONTINUE

	printf "Creating backups..."

	# Backup original binaries